2B Surface Cold Rolled Stainless Steel Sheet Plate 3mm - 12mm SS Plate

This is high-quality 400 series cold rolled stainless steel sheet and plate supplied by direct manufacturer, with complete thickness specification of 3.0mm to 12mm and standard industrial 2B smooth surface. Adopting refined cold rolling integrated production process, the whole steel plate has flat and smooth surface, uniform internal structure, stable overall size tolerance and excellent flatness. All raw materials are strictly screened, produced and inspected in full accordance with ASTM, ISO and JIS international industrial standards, with stable chemical composition, uniform hardness and no surface scratches, no oxidation spots, no plate deformation. It is the preferred raw material for batch supporting in mechanical manufacturing and general industrial processing industries, with stable quality and strong batch consistency.

430 Ferritic Stainless Steel: C≤0.12, Si≤1.00, Mn≤1.00, P≤0.040, S≤0.030, Cr: 16.00–18.00, Ni: Residual

410 Martensitic Stainless Steel: C≤0.15, Si≤1.00, Mn≤1.00, Cr: 11.50–13.50, Good hardness and wear resistance

409L Special Industrial Grade: Low carbon design, excellent high-temperature oxidation resistance, stable mechanical structure, suitable for heavy-duty mechanical supporting parts

The overall density of 400 series cold rolled stainless steel sheet is 7.75g/cm³, with low thermal expansion coefficient, stable thermal conductivity and reliable elastic modulus. The whole plate has uniform physical performance, good structural stability under normal temperature and conventional working environment, strong pressure resistance, not easy to bend and deform in long-term mechanical assembly use, fully matching the physical load requirements of mechanical manufacturing equipment accessories.

400 series stainless steel has excellent atmospheric oxidation resistance and moderate acid and alkali corrosion resistance. The cold rolled 2B closed protective surface effectively isolates air oxidation, avoids surface rust and discoloration in indoor and conventional outdoor industrial environments. It has good anti-rust effect in dry workshop, mechanical processing workshop and general atmospheric environment, stable performance, no pitting corrosion, and greatly reduces later maintenance cost of mechanical parts.

This batch of 3.0-12mm cold rolled stainless steel plate has high tensile strength, stable yield strength and good surface hardness. Compared with ordinary steel plates, it has stronger wear resistance, pressure resistance and impact resistance. The internal structure is compact and uniform, with good fatigue resistance. It can be used for mechanical structural parts, fixed supporting parts and hardware accessories for a long time, and will not break or deform under conventional mechanical load.

400 series cold rolled stainless steel sheet with 2B surface has good comprehensive processing performance. It is suitable for all conventional deep processing technologies such as laser cutting, fixed-size shearing, bending stamping, drilling and edge finishing. The plate has moderate toughness and hardness, no edge cracking, no surface damage during processing, high finished product yield, convenient for factory rapid batch processing and assembly production, and greatly improves production efficiency.

Cold rolling process makes the steel plate have tighter internal grain structure, higher surface smoothness and more accurate size tolerance than hot rolled plates. The finished 2B matte smooth surface is neat and beautiful, no need for secondary polishing, directly available for assembly and use, saving processing time and labor cost. The whole plate has uniform thickness and good flatness, which is more suitable for high-precision mechanical matching parts.

Widely used in mechanical equipment manufacturing, industrial hardware accessories, engineering structural parts, equipment shell stamping, workshop auxiliary facilities, electrical cabinet panels, general anti-rust metal parts and other industrial fields. Conventional 3.0-12mm thickness is the most commonly used supporting specification for mechanical processing, which can be directly cut into various special-shaped parts to meet diversified production needs of manufacturers.

We are a professional 400 series stainless steel direct sales factory, with complete production lines and sufficient spot inventory of 3.0-12mm cold rolled 2B surface sheets all year round. All products are strictly inspected by quality inspection before delivery, with complete test reports. We support customized size cutting, customized processing and fast door-to-door delivery. Adhere to factory direct sales, eliminate intermediate price difference, provide the most competitive ex-factory price and standard export packaging. Welcome global mechanical manufacturing buyers to contact us for real quotations and sample testing!